Changes between Version 28 and Version 29 of SMEFTatNLO
- Timestamp:
- Apr 19, 2021, 1:34:54 PM (4 years ago)
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SMEFTatNLO
v28 v29 47 47 It also allows for a better control over coupling orders and, in particular, for the separate computation of linear and quadratic EFT contributions at NLO. 48 48 49 The {{{2.X.X}}} series of MadGraph5_aMC@NLO should be used for event generation (i.e. beyond fixed-order computations). 50 It can however not handle four-quark operators at one-loop. 49 The {{{2.X.X}}} series of MadGraph5_aMC@NLO cannot handle four-quark operators at one-loop and (in general) {{{cpG}}}. 51 50 The model should in that case be loaded with the {{{no4q}}} restriction card (doing {{{import model SMEFTatNLO-no4q}}}) which excludes four-quark operator coefficients. 52 An exception is single top-quark production in which the colour singlet {{{cQq13}}} and and octet {{{cQq83}}} are available in {{{2.X.X}}}.53 For th e latter, see however the specific instructions belowabout "loop filtering".51 An exception is single top-quark production in which the colour singlet {{{cQq13}}} and and octet {{{cQq83}}} can be included in computations with the {{{2.X.X}}} series of MadGraph5_aMC@NLO. 52 For that particular case, see however the specific instructions [#Topquarkproduction below] about "loop filtering". 54 53 55 54